Doorcheck



J. B. DOYLE oct. 13, 1931.

DOORCHECK Filed Nov. 14, 1928 2 Sheets-Sheet' l oct'. 13,1931. J. B.DOYLE l1,827,143

DOORCHEGK Filed Nov. 14, 1928 2 Sheets-Sheet 2 Patented Oct. 13, 1931ferire fsrieirns -fPATEN'r foreros Jose-'ria enr-ineen norm7 or MOUNTVERNON, ,NEW Yoan, AssrGNoiero Janus n.4L

HOWARD a' *.CCMPANY, or miniemen CONNECTICUT, pe. CoBnonzr'rioN or 'CCN-noononncx `Agplication ed'November11'4, 19128. lSerial No. 319,425.

The general object of'theinvention is to" provide a cli'ecirforpreventing adoor f'from slamming closed, ywithout being stopped a fewinches `away from the door post.

A :furtherfobj ect of .the `invention 'is topro-v y vide such device,`which, upon ythe l,door L L v y., v h i wenig arrested, willautomatically allow t e door :to continue itsk closing movement 'with`out interruption.

iy "so controllingthe 4closing movernent of door, many accidents, suchvasthe lpinch- ,li of 'a lpassengers iliand between 'the fdoor it: andpost, by reason `ofthe door raccidentally Islaniminp; shut, or 'being`suddenly fel'osed `by the 'trainattendant, may be prevented. v

A further robj'ectfof'the Vinvention is ltoprovide a door Checlrwhicli,when theido'or is closed at inot 'to 4exceed :a certain speed, lwill notGemeint-o `operation to eheckftlie'closing -of the door, butwliich willlso check it, when lthe Alimit of spee'dfof tliefolosing operation isexceedeo ,.-a'nd one 'which will furtherr operate automatically, bothfto fcheck the "door, and to rallow of 4thesubsequent'continuedjiclosing `anduts :compera-tingaparts.

movement, 'the faction 'of gravity being' taken advantage l of 'i tor'epla'oe the jpa'rts in position to allow the closing of the doorafterthe l king hastaken place.

rnotlierpbject is to providea-doorfcheck Y of fthe typeset forth above:which will not e lfe'ct yor impede 'tbeopening' :movement of the fdoor, 'irrespective of vthe speed of such l movement. f

` i nientof parts hereinafter'more which 'will'fmore particularlyyappear 'as 'the L; applied l'to Itlie sliding door thereof.

Figure @represents an' enlargedielevational v view, partly broken awa-yand Ypartly `tin ksec- Y :tifon from fthe :inside ofk the door .lookingout therefrom. l 1 l Eigure Sfrepresentsia topplanview"ofth'edisclosureiof FiguresQ.

ureQ showing'fthe positionaof the partsfin the arrested positioirof thedoor,iand before dthe "arinhas .dropped/:by gravity to allowtlre I.,

continued 'closing :of the door.

`Figurea represents atop plan view, parts being in sectioinfofftlieinvention applied'to a :swinging'doorfand its jambs. ,y y

`Figure represents'anielevational view of' the arran Oement of 'Figure5.

`Figure yrepresentsan elevational view of vanadaptation"of:the inventionin the form of a'combined stop andlatcli.

vReferring `rnore particularly ,to the Vdraw--ings,iazrailwayicoaehxisindicated atri, aslidring fend door :therefor`is .indicated at B, Tthe check Vis indcatedigenerally at @,aandthe doorpost 'is indicated at D. 1

Moderncars-'are built of steell andithe I invention will be particularlydescribed-'as ap- .pliedito the cariconstruction nowin general practice,:butiit fis .to `be understood thatthe Viinvention is'not'to be limitedtofs'liding-doors 4'or -to `the particular ltype-of'fdoor disclosed, e L

dfi

gure .flfrepresents a iviewfsimilar to Fig- Y -Joritoitheparticularconstruction ofsuch door vAnarm whili may Vbe-counter-weighted 'at'5 isfpivotedat' between 'the'sidesfof the ldoor,'extending'outtlirough aslotted opening f7',the bottom iwallofzsuch slot serving as a :restforsupporting thef arm normallyiin horizontal position, 'andsnch arm-isloc'atedprefsei-ably nearftlietop of ithe door so asLnot toimpedeifreepassagethroughzthe door-way, or Aftoloril'f'er obstructionthereto. The outerend offthefarm istpreferably lrounded as at 8,rand yat'its-lower edge inclines gradually .downwardly froin such rounded-`portion to provide 'a cam surface '9,1wh'ichuat Al0 .bends -sl1'arplydownwardly and then around` to form f a nodule 11, the surface ofithecam 9 :and nodule Ill merging at "thelcur-ved Vsurface 1Q. @n` its upperedge, the `arml '5 is formed Iwith a shoulder or stop 13, positionedabout even with the portion of the nodule nearest the pivot point 6.rThe door post l), including the strip 14- ilanged to receive the door7usually found thereon, is provided with an opening l5 opposite the arm5, such opening being of a vertical height somewhat greater than thevertical width of the arm o, including the nodule and shoulder i3., toallow these parts to pass through the opening as the door moves intoclosed position. T he width of 'the opening 15 is slightly greater thanthe horizontal width through the arm, to allow free passage of the armtherethrough.

ln operation, normally the door being open, the arm will be inhorizontal position shown in `Figures l and lf the door shouldinadvertently slam shut, or should be closed too great a speed by thetrainman, the cam surface 9, as the arm approaches and enters theopening l5 on the door stop, will, by engaging the lower edge of theopening in the door post start an upward movement of the arm, and as thecurved portions 2 and l() of the cam surface and the nodule engage theedge of the post peiling, this upward movement will be greatlyaccelerated, with the result that the arm will be thrown upward to aposition where the shoulder lil will engage with the material of thedoor post at and adjacent to the upper edge of the opening-f therein, asshown in Figure 4l, thus checking the closing movement of the door. Thedoor having been checked in its movement, gravity acting upon the arm 5will cause it to fall, whereupon the upper edge of the shoulder i3 willclear the upper edge of the opening l5 in the door post, the nodule.having passed the edge of the opening, droppin@ upon the lower wallthereof and thereupon the door is free to continue its closing movementwithout interruption.

rlhe door may, of course, be gradually closed as the arm approaches thepost, at a speed which will allow the arm to ride on its cam surfaceswithout throwing the arm upwardly, the door thus being capable of beHing closed without an interrupted movement. lf, however, this speed ofclosing is exceeded either when the door accidentally tends to close, oris purposely closed, the che/cli will come into play and thus stop theclosing movement when the door arrives at a position for a few inchesaway from its post.

rl`he door being closed, it will be observed that the check will. notimpede the opening movement of the door in any way, this for the reasonthat the shoulder and the metal ac.- jacent thereto, being as near thepivot as "'l o nearest portion of the cam surface of the nodule, willenter the opening l5 upon opening movement ofthe door before toe nearestcam surface contacts with. the inside edge of such opening. Se that evenif the opening movement is fast enough to throw the arm upwardly theonly thing that could happen would be for the top surface 16 of thev.side opposite the head, receives a nut 6. rlhe latter may be retainedagainstloss by the cotter pin l?. ln assembling the device, the arm maybe passed into the door through the opening 7, which may be large enoughfor this purpose, and the opening in the arm for the reception of thebolt aligned with the openings in the door faces through which the boltprojects. rllhe bolt may then be passed through the aligned openings inthe door faces and arm, the nut assembled, and the Getter pin put inplace. Of course other methods of mounting and assembly may be used, butthis illustrates a simple and eective method of mounting the device.

ln the form of the application of the invention to a swinging door, asillustrated in Figures 5 and 6, the arm 5a may be pivoted as by a rivetor other suitable means 6a in a support 18 screwed or otherwise securedas at 19 to the face of a swinging door l5. Such support may have ashoulder 2O serving as a rest to hold the arm normally in substantiallyhorizontal position. ln this form of the invention the arm may, asillustrated, be not equipped with a counter-weight, since suchcounter-weight would take up room, and in the type of installationillustrated, it is delsirable to have the device as inconspicuous as maybe and to occupy a minimum amount of room. To (3o-operate with the arm.in the manner as heretofore already set forth with reference to thesliding door, the door jamb D is provided with a bracket 2l securedthereto in desirable manner and provided with spaced arms 22 and 23positioned apart a distance slightly greater than the vertical width ofthe arm through the nodule ll and shoulder 13', to allow these parts topass between the arms the door moves into closed position. lf desiredthe cam surface 9 of the arm may be straight rathe than compound as inthe form shown for instance, in Figure Q, and may be su'iiiciently steepto insure of the arm being thrown upwardly when such cam surface strikesthe edge of the lower arm Q3 of the bracket when contacting therewith ataV speed exceeding a given limit. `When so thrown upwardly, the shoulder1?/ `will engage the arm 22 and thus arrest the closing movement of thedoor, the arm there upon being pulled down by gravity to allow the doorto continue its closing movement, as heretofore set forth in connectionwith the first form of the invention described.

ln the adaptation of 'the invention in the form of the combined stop andlatch, as ilassegna lustratedy in Figure 7, one end 5b of the arm f' 5may project through an opening in the door B2 onto the outside ofthedoor to be engaged by one opening the door, in order to may be extendedas ai 5d to afford a thumb'.y

or finger hold on the inside of the door at 11 p anarinpivoted to door,such arinibesuch opposite end. The extended end 5b will act asacounter-weight. In this form of the invention, a suitable bracket 18pivotally supports the arm in position on the door, and the bracket 2lwhich may be similar to the bracket 21 is carried on the door jamb D2.In this type of the invention, however, the nodule 11a instead of being`rounded on its side toward the pivot, as in the other forms of theinvention illustrated, is squared on this side to form a shoulder 24,and such shoulder engaging against the inner face of the lower arm 28aof the bracket, will pr-event the door from being opened until the armis manually raised. Thus in this form of the in- '-fention, latch iscombined with the stop feature of the invention, and this latch may bemanually lifted from the inside or outside of the door, as the case maybe, by a person desiring to pass therethrough. This form of theinvention is adapted for use, for instance, on swinging screen doors.Such doors are usually equipped with spring means for closing them. Thedoor stop feature of this ferm of the invention will effectually arrestthe closing of the door at a point spaced from the jainb before itswings entirely closed, the door thereafter closingwhen the arm drops bygravity, asin the other forms of the invention. The distance'v at whichythe door may be stopped from the jamb in the forms of the inventionshown in Figs. 5-7 may be adjusted by placing the bracket closer to orfurther from the edge of the jamb against which the door closes. By thuspreventing the door from slamming to, under the action of its closingspring, not only is quieter operal tion and closing movement of the doorse-Y cured, but the pinching of anything between the edge of the doorand its j amb may be prevented, and thus many accidents, of whichchildren and household pets, for instance, are often the victims, may beavoided.

The bracket of Figs. 5 7 with its spaced arms corresponds in functionwith edges and walls of the opening in the door post of the form of theinvention illustrated for instance, in Figure 2, the space between thearms corresponding to the opening in the door post of that figure; andthe door jamb of Figs. 5-7 corresponds in function with the door post ofFig. 2, so that my claims which include the door post, withV an openingtherein, are intended to include the door j amb and bracket structure ofn igs.r 5-7 as well.

The foregoing description has been given for purposes of illustratingthe invention,A and no undue limitations should be deduced therefrompbut.y the." appended claims: should be, construed .L as broadly aspermissible, i in l1'view-lofvth'e'ffprior art.- Y Y p i Having'thuszdescri'bed my invention what lift the arm, and the opposite end ofthe arm im as. newisi--f f .i f l The` eombniationlwith vdoor and-,its

post, the latter yhaving anv opening therein, l

ing `prrrvriidedwithl a eanifsufrface` on its lower edge adaptedtoengage the lower edge oi' the-.openingaifid tothrow thearni upwardlywhen therdoor is slammed to, the said arm being!provi.died'.` oniits.upper edge with .a shoulderadapted to engage the upper edge of theopening when the arm is thrown upwardly,- said shoulder being locatedslightly rearwardlyT of the said cam surface, the opening being ofvgreater vertical dimension than the. combined vertical dimensions of the.arm v including the said cam surface and the shoulder, the openingbeing of greater horizontal dimension than that of the arm, to permitthe arm to pass therethrough, the said arm being adapted, after havingbeen thrown upwardly, to return by gravity to its normal position,thereby allowing the door to move into closed position.

2. The combination with a door and its post, the latter having anYopening therein, f

face of the arm adapted to engage the upperV edge of the opening tocheck the door when the arm has been thrown upwardly by the said nodule,the opening being of greater vertical and horizontal dimensions than thearm, including the said shoulder and nodule, to permit the arnito passtherethrough, the arm being adapted to return by gravity to its normalposition after having stopped the closing movement of the door.

3. The combination with a door and its post, the latter having anopening therein, of an arm pivoted to the door, such arm being providedat its tip with a rounded sur# face,k the being further provided with acainsurface on its lower edge adapted to engage the lower edge of the`Vopeningvto throw theV arm upwardly when the door is slammed to, a noduleon the lower surface n of thel arm, the said cam surface forming acurved joinder between the nodule and the said rounded tip of the arm, ashoulder on the upper surface of the arm adapted to engage the upperedge of the opening to check the door when'the arm has been thrownupwardly bythe said nodule, the said shoulder v being adapted to comeinto Contact with the edge of the opening only when a certainpredetermined speed of closing is exceeded, the opening being ofgreatervertical and horizontal dimensions than the arm, including the saidshoulder and nodule7 to permit the arm to pass therethrough, the armbeing adapted to return by gravity to its normal position after havingchecked the closing movement of the door.

In testimony whereof I hereunto aiiix my signature.

JOSEPH BERNARD DOYLE.

